Type weiting machine



2 Sheets-Sheet 1.

R. E I L M. M m

TYPE WRITING MACHINE.

No. 531,352. Patented Deo. 25, 1894?@1 No Model.) A'

' M. A. WIER.

TYPE WRITING MACHINE.A

N. 531,352. Patented Dec'. 25, 1894.

2 sheets-sheet 2.

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`on line X X of Fig. l.'

UNITED STATES 'PATENT OFFICE.

MARSHALL.ARTHURl wIEE, or KINGSTON-UPON-THAMES, ENGLAND.

` TYPE-wmTlNe MACHINE.`

SPECIFICATION forming part of Letters PatentrNo. 531,352, dated December 25, 18794. Application led October 29-I 1891. Serial No. 410.267. V(No model.) Patented in England September 7, 1891, No. 15,107.

TQ all whom it may concern: n p

Be it knownl that I,'MARsHALL ARTHUR WIER, engineer, a subject of thel Queen of Great-Britain, residing at Elm` Bank Place, Lower Ham Road, Kingston-upon-Thames, in the County of Surrey, England, have invented certainnewand useful Improvements in Type- Writing Machines,f(patented in Great Britain September 7, 1891, No. l5,lO7,) of which the following is a specification. Y

This invention relates tovimproved means and apparatus for'mounting and actuating the printing type in type printing machines, and consists essentially in the employment of pneumatic means for the actuation of the type instead of or in combination with the mechanical appliances heretofore in use; and in orderthat the said invention may be fully understood, I will now proceed to describe the same with reference to the accompanying two sheets of drawings, in which- Figure 1 is a front elevation of a type writing machine acting on the principle of the well known Remington machine but constructedv in accordance with my invention. Fig. 2 is atransverse section of the same taken Similar letters of reference relate to like parts in all the figures of the drawings.

A A are the two side frames of the machine.

B, B', B2, B3 and B4 are stretcher bars unit' ing these two frames together.

C Care a series of tubular type holders or carriers of square or other suitable internal section'. These type holders or carriers are secured in and supported by two plates D D carried by pillars D. onthe stretcher bars B B2 of the framing of the machine. `The said type holdersior carriers O C are placed so that they each and .all converge toward a'point E on the printing roller F as will be well undering round in the type holders C. On the outer n end of each rod G is mounted a type H, the

face 'of which isplaced at 'such an angle to its supporting rod G as will cause it to stand in the same plane as the faces of all the other type as shown in the drawings when the 'rodsY lapsible air chamber J mounted in a position fnected by a flexible or other tube I to a colcorresponding to the ordinary key of a typewriting machine. On pressing any one of the said collapsible air chambers J with the finger, the air in the said chamber and tube is compressed and acts on the lower end of the I corresponding rod G, forcing the said/rod upward in its tubular type holder and the type H strikes against the paper (which iscarried under the roller F, or other suitable surface placed in a proper position with reference to the type holders) so as to print the corresponding letter thereon as shown by dotted lines in i Figs. l and 2. When the collapsible chamber is released,fit resumes its original form and thereby assists the action of gravity to return the rod G quickly to its normal position.

The necessary step by step movements of the .paper in order to presenta fresh. point for receiving the impression of each successive letter, and movements of the paper for commencing a fresh line, or for Vthe spacing between adjacent Words, may b e effected by any suitable means. For example the collapsible air chambers .I may be mounted, as shown in the drawings, on a .rocking board K turningon a fulcrum at K so that each time one of the said collapsible chambers is pressed by the finger, the said rocking board is depressed at its front end and draws the slidingbar L to the left by means of the band or cord M connected at one end to the said bar L, and,

after passing over the guide pulley N, con- M a predetermined distance to the left. When the rocking board K is released from the ac tion of the finger of the operator, it is restored to its normal position by means of the springs K2 and a spring L then draws the bar L to the right, bringing another tooth of its rack behind the tooth P2 of the pawl P in readiness for another operation.

When it is required to bring forward the paper for the commencement of a fresh line 1o of type-writing, the crank handle Q is moved in the direction of the arrow and the pawl Q taking into one of the teeth of the ratchet wheel Q2, which is xed on the axis of the roller F,1noves the paper forward to the required distance in a manner well understood in connection with machines of this kind.

The rods G, carrying the type, may be arranged in the type holders in any required order, so that a type-writing machine, couzo structed in accordance with my invention, can readily be used as a cryptograph or cipher writer when the lettering on the collapsible chambers is made to correspond with the type on the ends of the rods in the corre- 2 5 sponding type-holders, and for this purpose such machines may be furnished with movable scales, indices, or pointers, as described in the specilication of a patent granted to me, dated August 19, 1887, N o. 11,341. For ex- 3o ample such a movable scale may be arranged as shown in the drawings, in which- R R are two rollers mounted one at each side of the machine.

S is a tlexible band, one end of which is at- 3 5 tached to the roller R and the other end to the roller R. This band S has printed, or otherwise marked, thereon, letters or other signs corresponding to the type on the rods G, such letters or signs being so placed on the 4o band S that when the latter is in its normal position they stand over the corresponding callapsible air chambers J, and the latter can be operated by pressing on the part of the band S where the corresponding letters or signs are found, and ordinary type writing can be executed; but when the said band is moved one or more places to the right or left by winding it more or less on to one of the rollers R or R and unwinding it to the same 5o extent from the other the letters or signs on the band S will stand over air chambers J which do not correspond to them, and the machine can then be used as a cryptograph in the manner described in the specification of 5 5 my aforesaid patent, No. 11,341.

The inking of the type may be elected by any of the well-known arrangements that may be` best suited to the particular kind of machine to which the improvements are applied.

` 6o For example, in the machine illustrated in the drawings, the inking is eected in the following manner:

T is an inking pad arranged to turn on a hinge at T on a Iixed bracket T2.

T3is an arm of the inking pad T pin-jointed by a link T4 to a lever T5 turning on a fulcrum at T6.

T2 is a sliding rod the lower end of which rests on the rocking board K and the upper end comes under the lever T5. When the rocking board K, after being pressed down to effect the lateral movement of the paper, as above described, is released, it rebounds under the action of the springs K2 somewhat above its normal position, striking the lower end of the rod T8, causing the latter to push up the lever T5, turning the inking pad T on its hinge into the horizontal position shown in dotted lines so as to apply ink to the surfaces of the type I-I; but when the rocking board K has resumed its normal position, the spring T7 restores the parts to the positions shown in the drawings to allow of the next printing operation.

Instead of the type being mounted on the ends of the rods operated directly by the pressure of air in tubular type holders, the type may be mounted on levers, rods, or other instruments, operated directly or indirectly by the pneumatic appliance as illustrated diagrammatically in Figs. 3 and 4 of the drawings, in which- J is a collapsible air chamber; J an expansible air chamber such as for example a flattened india rubber ball in Fig. 3, or an expanding bellows in Fig. 4; I,a tube connecting the air chambers J and J together.

G' (Fig. 3) is a lever or arm pivoted at G2 and either carrying at its outer end a type I-l or acting on a rod G3 sliding longitudinally in suitable guides and carrying at its upper end a type in the same way as the rods G in Figs. l and 2. On causing the air chamber J to collapse by the pressure of the linger or otherwise, the air chamber J expands, raising the lever G and its type I-I, causing the latter to strike the paper placed in a suitable position above it; or, if the type is carried on a rod G2, the latter is raised by the lever G' and the type on it strikes the suitably placed paper. On removing the iinger from the air chamber J, the latter expands and the air chamber J collapses and the other parts return to the positions shown in the figure.

In Fig. 4 the type rod G2 is operated directly by the expansible air chamber J without the intervention of the lever G.

The collapsible air chamber, instead of being pressed directly by the linger of the operator, may be pressed by a lever key as illustrated at J2 in Fig. 5.

It is obvious that the above described pneumatic means of operating the type may be applied to almost any kind of type writing ma- IIO chine, the mechanism, and the arrangement thereof being varied according, to the nature of the machine employed and its mode of action.

The collapsible air chambers J, shown in Figs. l, 2, 3, 4 and 5, consist of india rubber hemisphere's, but they may consist of cylinders and pistons, bellows, or any other known and suitable appliances for compressing air.

I claiml. In a typewriting machine, the combina.

tween the compressible chambers and typeA bars whereby the latter are actuated upon the movement of said rocking board, substan-l tially as described.

2. AIn a typewriting machine, the combination Withtype-bars and their actuatinglnechanism, of an inking device, a rocking board capable of being depressed independently of, or by reason of, the operation of said mechanism, for communicating motion to said inking device, substantially as described.

3.' In a typewriting machine, the combination with type-bars and their actuating mechanism, of a rocking board, capable of being depressed independently of, or by reason of, the operation of said mechanism, a hinged pad and a connection between said board and pad for operating the latter, substantially as described. Y

4:. In'a typewriting machine, the lcombination with type-bars and their actuating mechanisln, of an inking device, a rocking lboard capable of being depressed independently of, or by reason of, the operation of said mechanism, for simultaneously imparting a step-bystep motion to the paper and operating the said inking device, substantially as described.

In testimony that I claim the foregoing as my invention yI have signed my name in presence of two subscribing witnesses.

MARSHALL ARTHUR WIER.

Witnesses:

` WILLIAM HENRY BECK,

STEPHEN EDWARD .GUNYON, Both of 115 Gannon Street, London. 

